Steel Panerai Luminor 1950 8-Days Chrono Monopulsante GMT PAM 00311. K series of 500.
Brushed titanium case diameter 44mm water resistant to 100 meters, polished titanium bezel. Hand wound mechanical P.2004/1 movement, completely manufactured by Panerai, 29 jewels, 8-day power reserve, 3 spring barrels.
Tobacco brown sandwich dial with luminous hour markers and numerals, thirty minute chronograph sub-dial at the three position, horizontal 8-day power reserve indicator, second sweep sub-dial that zeroes when crown is pulled out to set time. Sapphire crystal see through case back. Black croc strap with brushed steel buckle. Box and papers March 2009. Our reference S12482. (replacement cost £12,200) PAM 311

£11,850
The start, stop and reset of the chronograph is operated by a single push piece at the bottom left of the case.
The second sweep sub-dial incorporates a small circular day/night indicator, which rolls to a full black circle from the dark night hours 6.00pm thru to 6.00am, and rolls to a full circle in day light hours, if flying to a different continent the hour hand can be adjusted independently using the winding crown to the arrival time-zone, leaving the 2nd black hour hand with luminous point set to the time zone of the departed country, the day/night detail indicated if the time would be for example 4.00am in the morning, or 4.00pm in the afternoon.